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Polyacrylic Acid, PAA Chemical


Polyacrylic acid is innoxious and soluble in water, it can be used in situations of alkaline and high concentration without scale sediment. The polyacrylic acid solution can disperse the microcrystals or micro sand of calcium carbonate, calcium phosphate, and calcium sulfate.

Polyacrylic acid is used as a scale inhibitor and dispersant for circulating cool water system, papermaking, weave, dyeing, ceramics, painting, etc.

CAS No.: 9003-01-4

Structural Formula:

Polyacrylic Acid


AppearanceAmber transparent liquid
Solid content, %50 Min.
Free monomer (CH2=CH-COOH), %1.0 Max.
Density (20℃), g/cm31.2 Min.
pH(1% solution)3.0-4.5

30%, 40% ,60% Polyacrylic Acid are supplied too.


Polyacrylic acid can be used as a scale inhibitor and dispersant in circulating cool water systems in power plants, iron & steel factories, chemical fertilizer plants, refineries, and air conditioning systems. Dosage should be in accordance with water quality and equipment materials. When this PAA chemical used alone, 1-15 mg/L is preferred.


Polyacrylic acid and the derivatives are widely-used inside throw-away baby diapers, ion exchange resins, adhesives, and also cleaning agents.

Cleaning agents in many cases are copolymers of acrylic acid which can be used in both zeolites and phosphates in washing powder products.

PAA chemical may inactivate the antiseptic chlorhexidine gluconate. The neutralized polyacrylic acid gels are usually appropriate to acquire biocompatible matrices for healthcare purposes. Such as skin gels for skincare or skin disease treatment products.

For the development of polymeric matrices that allow a controlled delivery rate of active substances, the latest research aimed towards the clarification of the conformational changes of the polymeric gel during neutralization, light irradiation, and embedment of gold nanoparticles. The US Food and Drug Administration authorized the use of SAPs in packaging with indirect food contact.

Package and Storage:

200L plastic drum, IBC (1000L). Also as customers’ requirements. Storage for one year in shady room and dry place.

Safety Protection:

Acidity, avoid contact with eye and skin. Once contacted, flush with water.